CBSE-CLASS-XII SERIES
Biology

Antibiotics

4 previous year questions.

Volume: 4 Ques
Yield: Medium

High-Yield Trend

4
2024

Chapter Questions
4 MCQs

01
PYQ 2024
medium
biology ID: cbse-cla
(a) “Farmers prefer apomictic seeds to hybrid seeds.” Justify giving two reasons.
02
PYQ 2024
medium
biology ID: cbse-cla
The first antibiotic was discovered accidentally by A while working on B. ‘A’ and ‘B’ are:
1

A – Waksman; B – Streptococcus

2

A – Fleming; B – Penicillium notatum

3

A – Waksman; B – Bacillus brevis

4

A – Fleming; B – Staphylococci

03
PYQ 2024
medium
biology ID: cbse-cla
Whose skulls ‘A’, ‘B’, and ‘C’ are shown below? Which of the two are more similar to each other?
\begin{figure}[h!] \centering \includegraphics[width=0.8\textwidth]{Screenshot 2025-01-16 122426.png} \caption{Skull} \end{figure}
04
PYQ 2024
medium
biology ID: cbse-cla

Differentiate between spermatogenesis and oogenesis in humans on the basis of the following:
(a) When the process is initiated.

About Antibiotics - CBSE-CLASS-XII

Antibiotics is a vital chapter for CBSE-CLASS-XII aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.

By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.

Frequently Asked Questions

Why focus on Antibiotics PYQs?

Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.

How to best use this analysis?

Review the topic breakdown to see which sub-topics within Antibiotics carry the most weight. Then, tackle the questions iteratively to solidify your understanding.